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NDT.net Issue - 2017-03 - Articles
NDT.net Issue: 2017-03
Publication: 7th Conference on Industrial Computed Tomography (iCT) 2017, 7-9 Feb, Leuven, Belgium (iCT 2017)
Session: Materials Characterization
ARTICLE

Characterization and model-based design validation of 3-D printed cookies

Valérie Vancauwenberghe1, Mulugeta Adasu Delele1, Pieter Verboven15, Evi Bongaers2, Martijn Noort3, Mathijs De Schipper3, Edwin Van den Eijnden3, Bart Nicolai14
1aBiosystem department bBIOSYST-MeBios; Catholic University of Leuven (KU Leuven) 103, Leuven, Belgium
2Bruker microCT2, Kontich, Belgium
3Food and Nutrition; TNO Industrial Technology3, Eindhoven, Netherlands

Abstract: Additive manufacturing is revolutionizing processing in many applications including 3-D food printing. A Fused Deposition Modelling printing method was developed to produce cookies. In order to design food of particular texture, a fine element model was established to predict the mechanical properties of structured products. Cookie structures were engineered to achieve desirable texture properties in silico and dedicated print files were created for 3-D printing. In order to validate the model, the properties of the printed cookies were measured and analysed. Compression tests were performed to determine Young’s modulus. X-ray micro-CT imaging was applied to characterize the 3-D microstructure of the printed cookies samples. Micro-CT imaging provided a better understanding about the effects of the 3-D printing process on cookie structure. Finally, a better fit of the prediction model was obtained by adjusting the model geometry to the scanned printed structure, which indicates the importance of structure integrity for mechanical properties of printed cookies.

Keywords: materials characterization (653), porosity (101), micro-CT (61), texture (14), Computed Tomography (284), structure (8), 3D food printing (1), Cookies (1),
*Keywords are freely formed keywords from the authors and thus you may Search also for similar terms.

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